Air-cooling system for internal-combustion engines.



A. M. CHASE.

AIR COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINES. APPLICATION I'ILED AUG.26. 1910.

1 13 129.. Patented Dec. 7, 1915.

2 SHEETSSHEET I.

A. M. CHASE.

AIR COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED AUG.26. I910. 11 13. 1% )0 Patented Dec. 7, 1915.

2 SHEETSSHEET 2.

INV NTOR ATTORNEYS UNITED STA PATENT orrion."

AURIN M. CHASE, 0F SYRACUSE, NEW YORK.

Application i iled August 26, 1910. Serial No. 579,117.

To all whom it mag concern:

Be it known that I, AURIN CHASE, of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Air-Cooling System for Internal-Combustion Engines, of which the following is a specification.

My invention has for its object the production of a particularly simple and eflicient air cooling system for internal combustion engines, and it consists in the combinations and constructions hereinafter set forth and claimed.

In describing' this invention reference is had to the accompanying drawing in which like characters designate corresponding parts in all the views.

Figure 1 is a side perspective v ew pargtly broken away of the front portion of a motor vehicle embodying my invention. Fig. 2 is a vertical section of the hood and boot looking forwardly, the position occupied by the cylinders being indicated in dotted lines.

1 are the sills of the motor vehicle; 2 is the dash board thereof, and 3 is the engine usually of the two cycle type and comprising a plurality of cylinders 4 arranged one behind the other and having peripheral circumferential flanges 5 and also radiating flanges 6 0n the dome-shaped heads thereof; and 7 is the crank shaft of the engine.

The cooling system for the engine comprises a casing inclosing the engine and having inlet and exit openings for the air, and a peripherally discharging suction fan for circulating air through the casing and about the cylinders.

As here shown the casing includes a bootor pan 8 depending from the sills 1 and means for concentrating and distributing the air about thecylinders, the boot or pan 8 being closed at its front end by a Wall 9 and having an exit opening 11 at its rear end, below the dash board 2. The crank shaft extends through the wall 9 and rear-= wardly to the rear of the dash board.

The air concentrating and distributing means comprises a hood 12 supported on the sills l in front of the dash board 2 and usually wings or deflectors 13 projecting from opposite sides of the hood toward the cylinders. The hood is provided with a wall 14 at its front end having an opening 15 there in alined with a space in the hood above the upper ends of the sides of the cylinders, the dome-shaped heads of the cylinders project- Specification of Letters Patent.

- ing into such space. m on to all of the cylinders, and are formed with downwardly extending flanges 16 at atented Dec. "7, 1915.

The Wings 13 are comtheir free edges, the flanges lying close to the cylinders and forming a trough for concentrating the air about the cylinders. The hood is removable, and when removed the w ngs are carried therewith so that the englue is easily accessible. The hood is held in position in any well known manner as by wing nuts 12 turning on screws l2 projecting upwardly from the sills through the flanges on the hood, which flanges rest upon the sills. The space between the front cylinder and the front wall 14 of the hood is divided by a horizontal plate or wall 17 located in the plane of the wings 13.' Such wall or plate 17 prevents a large current of an from passing downwardly in front of the first cylinder. The wings or flanges 13 and the plate 17 constitute a partition extending transversely of the cylinders in a plane between the ends of the cylinders and dividing the hood into upger and lower compartments connected by a passage through which the cylinders project. The plate 17 is -fe1--the purpose of preventing the first cylinder from receiving too much air when the first cylinder is located some distance in the rear of the front wall of the hood, and the plate 17 7 may be dispensed with by so positioning the'hood so that the front wall thereof is located nearer the first cylinder.

18 is a fly wheel mounted on the crank shaft at the rear end of the boot or pan and including .a peripherally discharging suction fan 19 having an inlet opening 20 opposed to the open rear end of the boot or pan.

In operation the air is drawn through the casing by the exhausting fan 19, the air entering the opening 15 but owing to the position of such opening and to the wings 13, the air is distributed substantially equally over the surfaces of the cylinders.

What I claim is I 1. In a motor vehicle, the combination with an engine comprising a plurality of air cooled cylinders arranged one behind the other, of a casing inclosing the cylinders and having an exit opening at its lower rear end, said casing including a removable hood having an air inlet at the front end thereof, and means for retarding the direct passage of air entering said inlet to said exit, said means being displaceable automatically on the removal of the hood, for giving free access to the engine, substantially as and for the purpose described.

2. In a motor vehicle, the combination with an internal combustion engine comprising a plurality of cylinders arranged one behind the other; of a casing inclosing the engine including a hood, and a partition extending transversely of the cylinders between the upper and lower ends of the cylinders and comprising wings or flanges carried by and movable with the hood, whereby upon the removal of the hood out of operative position, the flanges are automatically displaced relatively to the engine leaving parts of the engine accessible, said casing having an air inlet in the upper front portion thereof and an air exit in its lower rear portion, and means for discharging the air entering the casing through said exit, substantially as and for the purpose specified.

3. In a motor vehicle, the combination with an internal combustion engine comprising a plurality of cylinders arranged one behind the other; of a casing inclosing the engine including a hood, having an air inlet in the front portion thereof, said casing having an air exit in its rear lower portion, and means for retarding the direct passage of the air from the inlet to the outlet comprising a partition extending transversely of the cylinder and comprising wings-or flanges carried by and movable with the hood, the wings or flanges extending lengthwise of the engine on opposite sides of the cylinders in a plane cutting the cylinders between the up per and lower ends thereof; the flanges, the hood and the cylinders being so arranged relatively to each other that upon the removal of the hood, the flanges are automatically displaced leaving parts of the engine exposed and accessible, and means for circulating the air through the casing, substantially as and for the purpose set forth.

4. In a motor vehicle, the combination with an internal combustion engine comprising a plurality of cylinders arranged one behind the other; of a casing inclosing the engine including a portion below the en-" .gine,.and a movable hoodabove the engine, Said hood being provided at the front portion thereof with an air inlet and said casing having an air exit in the lower rear portion thereof, and means for retarding the direct passage of air from the inlet to the exit, said means comprising flanges carried by the hood on the inner face thereof, the

flanges, the hood and the cylinders being so arranged relatively to each other that upon the removal of the hood, the flanges are antomatically displaced leaving parts of the engine exposed and accessible, and means for discharging the air entering the casing through said exit, substantially as and for the purpose described.

5. In a motor vehicle, the combination with an internal combustion engine comprising a plurality of cylinders arranged one behind the other; of a casing inclosing the engine comprising a removable hood provided at its front portion with an air inlet and said casing having an air exit at its lower rear portion, and wings or flanges carried by the hood on opposite sides of'the cylinwith an internal combustion engine comprising a plurality of cylinders arranged one behind the other, and a crank shaft; of a casinginclosing the engine and including a hood above the engine and provided at its front portion with an air inlet, said casing having an air exit at its lower rear portion, and a horizontally extending open bottom trough carried by the hood and being common to all the cylinders, the walls of the trough extending lengthwise of the engine on opposite-sides of the cylinders thereof, and means for forcing the air entering the casing through said exit, substantially as and for the purpose described.

7. In. .a motor vehicle, the combination with an internal combustion engine comprising a plurality of cylinders arranged one behind the other, and a crank shaft; of a casing inclosing the engine and includin a boot or pan below the engine and provi ed at its rear end with an air exit, a removable hood above the engine and provided with an air inlet at its front portion and wings carried by the hood and extending lengthwise thereof on opposite sides of the engine, the wings extending in a direction transversely of the cylinders, and terminating short of the cylinders forming a passage through which the cylinders project, and a fan for forcing the air entering the casing through said exit, substantially as and for the purpose described.

8. In a motor vehicle, the combination with an internal combustion engine comprising a plurality of cylinders arranged one behind the other, and a crank shaft; of a casing inclosing the engine including a boot or pan below the engine, a removable hood above the engine and wings carried by the hood and extending lengthwise thereof on opposite sides of the engine, the wings extending transversely of the cylinders and incense pan below the engine and provided with an air exit at its rear end and a removable hood above the engine and provided with an air inlet at its front end, and transversely extending deflectors carried by the hood and being common to all of the cylinders, and a fan mounted on the crank shaft at the rear end of the boot or pan for discharging the air entering the casing through said-exit, substantially as and for the purpose set forth.

10. In a motor vehicle, the combination with an internal combustion engine comprising a plurality of cylinders arranged one be-' hind the other and formed with circumferential flanges, and a crank shaft; of a casing inclosing the engine having an exit at its rear end including a boot orpan below the engine, a hood above the engine and provided with an inlet at its front portion and deflectors carried by the hood and extending lengthwise of the engine and being common to all of the cylinders for concentrating the air about the cylinders, the deflectors terminating short of the cylinders forming a pas sage through which the cylinders project, and a fan actuated by the crank shaft for discharging the air entering the casing through said exit, substantially as and for the purpose described.

11. In a motor vehicle, the combination with an internal combustion engine comprising a plurality of cylinders arranged one behind the other and formed with circumferential flanges, and a crank shaft; of a casing inclosing the engine including a boot or pan and provided with an air exit at its rear end, and a hood having a wall at its front end formed with an opening alined with the space in the hood above the upper ends of the cylindrical walls of the cylinders, the horizontal partition extending transversely of the cylinders below the lower edge of said opening, and a fan for discharging the air entering the casing through said exit,

substantially as and for the purpose specified.

12. In a motor vehicle, the combination with an internal combustion engine comprising a plurality of cylinders arranged one behind the other and formed with circumferential flanges and a crank shaft; of a cas-v ing inclosing the engine including a bootor pan having a wall at its front end formed with an opening alined with the space in the hood above the upper ends of the cylindrical walls ofthe cylinders, and deflectors within the hood and extending on opposite sides of the cylinders transversely thereof and lengthwise of the engine, for concentratthe air about the cylinders and located e o W the lower edge of said opening intermediate of the ends of the cylinder, and a peripherally discharging suction fan mounted on the crank shaft at the rear end of the boot or pan, substantia'llyas and for the purpose set forth. 1

,13. In a motor vehicle the combination with an enginecomprising a plurality of air cooled cylinders arranged one behind the other, of a casing including a removable hood having an air inlet at the front thereof, said casing having an exit opening at its rear end with its axis below the horizontal planes in which the cylinders are located, means located' adjacent said exit tending to dis charge the air entering the casing through said exit, and means within the casing for retarding the direct passage of air from the inlet to the exit and for causing the passage of a body of air lengthwise of the upper part of the casing, said means including partition plates carried by the sides of the hood, substantially as and for, the purpose described.

14. In a motor vehicle the combination with an engine comprising a plurality of air cooled cylinders arranged one behind the other, of a casing including a removable hood having an air inlet at the front thereof, said casing having an exit opening at its rear end with its'axis below the horizontal planesin which the cylinders are located, means located adjacent said exit tending to discharge the air entering the casing through said exit, and means within the easing for retarding the direct passage of air from the inlet to the exit, and for causing the passage of a body of air lengthwise of the upper part of the casing, including a horizontally disposed partition plate extending inwardly from each side wall of the hood and running lengthwise thereof, iulstantially as and for the purpose speci- In testimony whereof, I have hereunto signed my name in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this. 

